#643B65#643B65

#643B65 is a dark, moderate purple. Relative luminance 0.068; OKLCH L 41.8% C 0.085 H 326.1°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#643B65
RGB	rgb(100, 59, 101)
HSL	hsl(299, 26%, 31%)
HSV	hsv(299, 42%, 40%)
CMYK	cmyk(1%, 41.6%, 0%, 60.4%)
CIE-LAB	lab(31.29, 25.45, -17.28)
CIE-LCH	lch(31.29, 30.76, 325.83°)
OKLab	oklab(41.8% 0.0702 -0.0471)
OKLCH	oklch(41.8% 0.085 326.1)
XYZ	xyz(9.1683, 6.7772, 13.1346)
Luminance	0.0678 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B65 #3C653B

analogous

#4F3B65 #643B65 #653B51

triadic

#643B65 #65643B #3B6564

tetradic

#643B65 #654F3B #3C653B #3B5165

square

#643B65 #654F3B #3C653B #3B5165

split-complementary

#643B65 #51653B #3B654F

monochromatic

#180E18 #3E243E #643B65 #8A528C #AA6FAB

Accessibility & contrast

On white

8.92

#643B65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#643B65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B65

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B65	#FFFFFF	#000000	##FFFFFF
##643B65	1.00	8.92	2.36	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#374667

Deuteranopia (green-blind)

#424B64

Tritanopia (blue-blind)

#663F4B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643b65;
/* rgb */ color: rgb(100, 59, 101);
/* oklch */ color: oklch(41.8% 0.085 326.1);

Tailwind

colors: {
  custom: {
    50: '#917291',
    500: '#643b65',
    950: '#000000',
  },
}

SCSS

$custom: #643b65;
$custom-light: #917291;
$custom-dark: #000000;

JSON

{
  "hex": "#643b65",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 101
  },
  "hsl": {
    "h": 298.571,
    "s": 26.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.418,
    "c": 0.08457,
    "h": 326.1
  },
  "luminance": 0.06777
}

Semantic roles & 50–950 ramp

primary

#643B65

secondary

#689567

accent

#C36567

background

#F9F6F8

surface

#F1ECF0

border

#CBC7CB

text

#0D080C

muted

#7E7B7D

Preview Lab

Preview with #643B65

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →